Hopper for dump-cars.



PATENTBD APR. 12, 1904. 4 J. 0.11BP11W.

HOPPER FUR DUMP GARS.

AAAAAAAAA oN. FILED 11017.21, 1903.

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No. 751,278. 4- PATENTED APR. 12, 1904.

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HOPPBR POR DUMP GARS.

APPLICATION FILED NOV. 21, 1903. N0 HODEL. 3 BHEETE-SHEET 2.

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No. 757,278. PATENTED APR. 12. 1904.

J. G. DBPEW. HOPPER FOR DUMP GARS.

'APPLIG ATION FILED NOV. 2l, 1.903. N0 MODEL. E 3 SHEETS-SHEET 3.

Patented April 12, 1904 PATENT OEEICE.

JOHN C. DEPEW, OF CHICAGO, ILLINOIS.

HoPPERj Fon DUMP-GARS.

. SPECIFICATION forming part of Letters Patent N0. 757,278, dated April 12, 1904. Applioationled November 21, 1903. Serial No. 182,101. (No model.)

To all whom it may concern.-

Be it known that I, JOHN C. DEPEW, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Hoppers for Dump-Cars, of which the following is a specification.

This invention relates, primarily, to the method of mounting the hopper of a dump-car upon the truck in a manner which will enable itV to be easily and quickly tilted for dumping and returned to horizontal position thereafter, to the method by which the sides of the hopper are raised for dumping purposes,the means by which the hopper is supported and discharged, and the means by which the sides are held in place when the hopper is in normal position.

Theinvention also relates to the means by which the operation of the several parts is quickly and easily effected; and the invention finally consists in the features of construction and combinations of parts hereinafter described and claimed.

In the drawings, Figure l is aside eleva tion of the entire dump-car with the hopper in normal position; Fig. 2, an end view with a portion of the supporting mechanism in section, showing the hopper in normal position; and Fig. 3, a similar end view showing the hopper tilted.

The hopper and operating mechanism of this invention are mounted upon a truck A, of any suitable construction, mounted upon wheels A', journaled Within journal-boxes a. Along the center of the truck is a longitudinally-extending supporting-timber B, upon which are carried end supporting-standards and a cen- T tral supporting-standard Z2', between the ears raised above the iioor of the hopper when the same is. dumped, and it is the method of securing said doors which forms one of the essential features of the present invention. The doors D are provided near their ends with reinforcing plates or straps d, between which are arrangedtie-rods d', which serve to reinforce the door. The strap-irons or plates d terminate at'their upper ends in heads d2, through which pass pivotpins d3, by which the doors are hung and from which they are adapted to swing. f

d The pins or4 pivots Zpass through heads di, which entend inwardly from and are secured to supporting-arms E,'two on each end of the car, which arms normally diverge, as shown in Fig. 2, and are pivoted, by means of a cornmon pivot e, to a block e', mounted upon a buffer e2 at' the end of the car, which latter, as shown, is mounted upon the end of the longitudinally-extending supporting-timber B.

The hopper is adapted to swing inside of a pair of cross-rails F, mounted upon supports f, one at each side of the car, and, as shown, the supporting side sills C' of the hopper eX- tend beyond the end walls thereof a suiiicient distance to swing down over the ends of the cross-rails F without touching the same, while the remainder of the hopper swings inside of the cross-rails, as best shown in Fig. 3. The end abutments are secured to the side sills of the hopper by means of angle-plates f or in any other suitable manner, and the angleplates'have their lower portion f2 turned in under the bottom faces of the side rails to form a protective plateunder which when the car is supported in normal position extend draw-bars G, carried within the cross-rails F, which draw-bars, four in number, one on each end of each of the cross-rails, serve to rigidly support the hopper in horizontal position when extended and allow the hopper to be tilted in either direction when onefpair of draw-bars is drawn back into the end crossrails Within which they operate. The method by which the hopper is supported in position y upon the truck and by which the drawbars are drawn to allow the truck to be tilted forms another part of the present invention. As

shown in Figs. 2 and 3, the draw-bars are IOO mounted within recesses g in the end rails, and each draw-bar at its inner end is pivoted to an outer link g', which coperates with an inner link g2, as best shown in Fig. 3. When the draw-bars are extended, as in Figs. 1 and 2, the two links g and g2 will lie Within the recess or slot in the cross-rail; but when the draw-bar is drawn, as shown in Fig. 3, the two links which are pivoted to a draw-arm g3 will be drawn down out of the slot or recess by the action of the arm,` thereby withdrawing the draw-bars on one side of the hopper' and allowing the same. to descend and dump the load-therein. rlhe corresponding drawarms at the opposite ends of the car are each pivoted to rock-arms g4, which rock-arms are mounted at the opposite ends of a longitudinally-extending rock-shaft g5, which permits of the simultaneous operation of the two drawbars at the opposite ends of the hopper, so that when the shaft is rocked the draw-arms will be both drawn at the same time and the two pairs of links drawn down out of the slots within which they operate, thereb7 simultaneously drawing the bars at both ends of the hopper and removing the supports for the ends of the side rails, which allows the hopper to swing on its pivotal mounting and tilt down between the end rails and their supports, as shown in Fig. 3.

It will be understood that there is a similar arrangement'of links and a similar rock-shaft on the opposite side of the truck for operating the oppositely-disposed draw-bars to enable the car to be tilted down on the other side and that the description here given applies equally to both sides of the car. Each of the rock-shafts is provided at one end with an operating-link g, which is pivoted to an arm g?, which in turn Vis pivoted to a bellcrank lever g8, pivoted at its bend by means of a pivot g, which lever in each case is mounted on that side of the car opposite to the side on which the hopper is discharged, so that when the car is tilted the operator will not be in the path of discharge of the contents of the hopper.

As has been before stated, the side swinging doors of the hopper are mounted upon diagonal arms E, pivoted by means of a common pivot e. Each of the diagonal arms has pivoted thereto a rocking arm H, secured, by means of a pivot-pin L, at a suitable point on the supporting-arm, and said rocking arms are slidably mounted within guide-heads z, one for each arm, which heads are pivoted, by means of pivots h2', to blocks h3 upon the end cross-rails, which arrangement allows either of the supporting-arms to be raised, as shown in Fig. 3, to a perpendicular position, allowing the swinging arm .connected therewith to slide within the guide-head, which latter being pivoted will turn suiciently to accommodate the change in angular relation of the swinging arm. As best shown in Fig, 3, each will not interfere with the outward and downward movement of the swinging arm when the hopper is tilted. By this arrangement an inward movement of the supporting-arms up to a vertical position is permitted; but an outward movement of the supporting-arms beyond the position which they occupy when the hopper is in normal position is prevented. As shown in Fig. 3, the car has been tilted and the supporting-arm on the side opposite to the direction of inclination of the hopperhas been brought into a perpendicular position by the movement of the hopper, and the position of the door to which said arm is connected has not been changed, owing to the fact that the supporting-arms on that side of the hopper move therewith. On the other hand, the opposite door has been held in the position which it occupied in Fig. 2, while the hopper is moved away therefrom, thereby allowing the contents of the hopper to be discharged under the door.

On each side of the hopper and journaled to the side sills thereof by means of journal-supports are rods I, each of the rods being provided at its end with a bent arm I in angular relation thereto and extending inwardly therefrom, and each of the angular arms is provided at its inner or free end with a curved portion which passes through a loop or eye 2 on one of the supporting-arms on the same side of the hopper, which arrangement allows the bent arm I to slide back and forth within the eye through which it passes, so that when the hopper is tilted the bent arm on that side of the hopper which is downwardly tilted will be drawn through the eye with which it cooperates and the curved end. of the arm thrown upwardly, as shown in dotted lines in Fig. 3, thereby rocking the rod to which it is attached. At the same time the opposite rod will remain in its first position by reason of the fact that the relation between the supporting-arm and the hopper on the upper side of the car rernains the same, whereas such relation on the lower side of the car is changed by the tilting of the hopper. Upon each of the rocking rods are arranged a series of outwardly-extending arms 3 in rigid relation to the rods, and to said arms are pivoted draw-pins 4, which extend upwardly through guide-plates 5, arranged outside of the swinging doors, and the ends of said draw-pins when in normal position project up above thefiooring of vthe car outside of the doors and prevent the doors from being swung outwardly when the car is tilted. When, however, the car is tilted, the rocking rod on that side of the car IOO IlO

Atained by the supporting-arms.

from which the material is to be discharged will be moved by the sliding of the bent arm on such side and drawn down as the hopper is tilted to escape out of the path of the descending contents of the hopper, so that when the hopper has been fully tilted, as shown in Fig. 3, the draw-pins on the lower side of the car will lie iiush with the iioor of the car and will not be contacted by the descending material. On the other hand, the draw-pins on the opposite side of the car will remain in projected position, as before.

The operation of the dumping-car of this invention will be partially understood from the foregoing description, but may be brieiiy stated, as follows: When the car is loaded with p material, the draw-bars will be projected under the side sills of the hopper and supporting t-he same, and at the same time the draw-pins on the side of the car will be projected to prevent the outward bulgingor swinging of the doors. When, however, it isy desirable to dump the car, the operator will grasp the bell-crank levcr on that side of the car opposite'from the discharging side and by pressing the lever will draw the draw-bars on such side of the car, and the weight of the material contained therein will cause the car to tilt, during which tilting the door on the discharging side of the car will be held in elevated position and supported by the su pporting-arms, while the opposite door will swing over with the hopper, so that when thev same is fully `discharged the weight of the latter door will aid in bringing back the hopper to normal position, since the weight of but one door will rest against the hopper, while the weightof the other door will be sus- As the car is being tilted the draw pins lon the discharging side of the car will be drawn down by the action of the rocking rod on that side of the car and again automatically projected into place when the hopper has been thrown into horizontal position.

It will thus be seen that the operation of the car can be controlled by one` man who stands in the most advantageous position away from the discharging side of the hopper and that when the hopper has been dumped it can be easily thrown into horizontal position, owing, to the advantageous distribution of weight, thereby greatly facilitating the ease and quickness of its operation and enabling a single man to manipulate a heavy hopper .without assistance.

Although the invention has been described with considerable minuteness, it is plain that some of the parts maybe changed and their relative position with regard to one another altered without departing from the spirit of the invention.

What I regard as new, and desire to secure by Letters Patent, is

l. In a dumping mechanism, the combination of a hopper tiltably mounted, swinging doors on each side of the hopper, supportingarms from which the doors are hung, means for supporting the hopper in horizontal position and allowing it to be tilted when desired, means for holding iiXed in normal position, the door and the supporting-arms which support the door on that side of the car from which the contents is to be discharged, and means for allowing the arms supporting the opposite door to be moved with the hopper and maintain a fixed relation thereto, substantially as described.

2. In a dumping mechanism, the combination ota hopper tiltably mounted, swinging doors on each side of the hopper, supportingarms at each end of the hopper between which the two doors are pivoted, a pivotal mounting for the ends of the supporting-arms, means for holding the door and the arms supporting the door on the discharging side of the hopper iiXed in their normal position as the hopper is being tilted and allowing the arms supporting the opposite door to be swung with the hopper, substantially as described.

3. In a dumping mechanism, the combination of a hopper tiltably mounted, swinging doors on each side of the hopper, supportingarms at each end of the hopper between which the two doors are pivoted, a pivoted mounting for the ends of the supporting-arms, a

sliding arm for each of the supporting-arms -a hopper tiltably supported on the truck,

swinging doors on each side of the hopper, supporting-arms at each end of the hopper between which the doors are hung, a pivotal mounting for the supporting-arms in line with lthe pivotal mounting for the hopper, and

means for holding in fixed position the arms supporting the door on the discharge side of the hopper and allowing the opposite arms to` be swung on their pivotal mounting with the hopper, substantially as described.

5. In a dump-car, the combination of a truck, a hopper tiltably supported on the truck, swinging doors on each side of the hopper, supporting-arms at each end of the hopper between which the doors are hung, a pivotal mounting for the supporting-arms in line with the pivotal mounting for the hopper, means for holding in fixed position the arms supporting the door on the discharge side of the hopper and allowing the opposite arms to be swung on their pivotal mounting with the hopper,draw-bars on each side of the hopper upon which the hopper normally rests and is held IZO in horizontal position, and means for withdrawing the draw-bar on the discharge side of the hopper and allowing the hopper to be tilted, vsubstantially as described.

6. In a dump-car, the combination of a truck, a hopper pivotally mounted thereon, swinging doors on the sides of the hopper, supportingarms at each end of the hopper between which the swinging doors are hung, a pivotal mounting for the supporting-arms, draw-rods projecting outwardly under the sides of the hopper for supporting the same in horizontal position, a rock-shaft extending from one end of the hopper to the other for operating all the draw-rods on one side of the hopper, a connection between the rock-shaft and the d raw rods for withdrawing the same, and means for rocking the rock-shaft to simultaneously withdraw the draw-rods on the discharging side of the hopper, substantially as described.

7. In adump-car,the combination of a truck, a hopper pivotally mounted thereon, swinging doors on the sides of the hopper, supportingarms at each end of the hopper between which the swinging doors are hung, a pivotalmounting for the supporting-arms in line with the pivotal mounting for the hopper, draw-rods projecting outwardly under the sides of the hopper for supporting the same in horizontal position, a rock-shaft extending from one end of the hopper to the other for operating all the draw-rods on one side of the hopper, a connection between the rock-shaft and the drawrods for withdrawing the same, and means for rocking the rock-sh aft to simultaneously withdraw the draw-rods on the discharging side of the hopper, substantially as described.

8. In a dumpcar,the combination of a truck, a hopper pivotally mounted on the truck and provided with side sills projecting beyond the ends of the hopper, raised cross-rails on the truck between which the hopper is adapted to swing, draw-rods slidably mounted within the a hopper pivotally mounted on the truck and provided with side sills projecting beyond the ends of the hopper, raised cross-rails on the truck between which the hopper is adapted to swing, draw-rods slidably mounted within the cross-rails and normally projecting therefrom under the sidesills of the hopper, means for simultaneously withdrawing the draw-bars on the discharging side of the hopper, swinging side doors for the hopper, supporting-arms between which the doors are hung, a pivotal mounting for the supporting-arms, a sliding arm for each of the supporting-arms pivoted thereto, a guideway for each of the sliding arms through which the sliding arms are adapted to slide, and an abutment on each of the sliding arms for preventing the forward movement of the supporting-arms toward the discharging side of the hopper and allowing the sliding arms connected with the supporting-arms on the opposite side of the hopper to be moved backward as said supporting-arms are raised by the movement of the hopper, substantially as described.

10. In a dumping device, the combination of a hopper tiltably mounted, a side door for the hopper, supporting-arms at each end of the hopper between which the door is hung, a pivotal mounting for the supporting-arms in line with the pivotal mounting for the hopper, means for preventing movement of the supporting-arms on the discharging side of the hopper as the hopper is tilted and for allowing the supporting-arms on the opposite side of the hopper to be moved therewith, draw-'pins normally projecting above the floor of the hopper outside of the doors, preventing the outward movement of the doors, rocking rods provided with fixed arms with which the draw-pins are pivotally connected, an inwardly-extending bent armfor each of the rocking rods, a loop or eye for each of the bent arms on one of the supporting-arms adjacent thereto throughv which the bent arm is adapted to slide allowing the bent arm operating the rocking rod on the discharging side of the hopper to be moved through the eye on the supporting-arm on the same side of the hopper for rocking the rod, allowing the bent arm on the opposite. side of the `hopper to remain stationary within the loop or eye on the supporting-arm on the same side of the hopper, substantially as described.

JOHN C. DEPEW.

IOO 

